The United States Department of Agriculture (USDA) provides the most extensive protein chart for all foods. People can also search by different parameters like food group or name. When searching by food names, a list of all foods in alphabetical order is generated.
This list is extensive and has over 354 pages. It is also possible to search for protein content by food groups such as dairy products, baby food, pork, fruits, vegetables, beef products and snacks.
To perform the search, the nutrient list needs to be clicked at the top of the initial page and another page is provided where people can search by different criteria like protein content, all foods and food group.
Protein is an important nutrient for maintaining a healthy body. Protein is a major source of energy for the body and its cellular function. Some foods that are good sources of protein are tuna, chicken, soybeans and spinach, according to World's Healthiest Foods.